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488138550 = 23526748571
BaseRepresentation
bin11101000110000…
…110011100110110
31021000112000012120
4131012012130312
51444430413200
6120234300410
715045052314
oct3506063466
91230460176
10488138550
112305a5799
12117587706
137a1911a3
1448b890b4
152ccc39a0
hex1d186736

488138550 has 48 divisors (see below), whose sum is σ = 1228677312. Its totient is φ = 128224800.

The previous prime is 488138543. The next prime is 488138593. The reversal of 488138550 is 55831884.

It is a super-2 number, since 2×4881385502 = 476558487992205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14236 + ... + 34335.

It is an arithmetic number, because the mean of its divisors is an integer number (25597444).

Almost surely, 2488138550 is an apocalyptic number.

488138550 is an abundant number, since it is smaller than the sum of its proper divisors (740538762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

488138550 is a wasteful number, since it uses less digits than its factorization.

488138550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48653 (or 48648 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 488138550 is about 22093.8577437260. The cubic root of 488138550 is about 787.3739379971.

The spelling of 488138550 in words is "four hundred eighty-eight million, one hundred thirty-eight thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 67 75 134 150 201 335 402 670 1005 1675 2010 3350 5025 10050 48571 97142 145713 242855 291426 485710 728565 1214275 1457130 2428550 3254257 3642825 6508514 7285650 9762771 16271285 19525542 32542570 48813855 81356425 97627710 162712850 244069275 488138550